Ubuntu.comUB:CVE-2020-13529CVE-2020-13529
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:A/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS
Percentile
49.6%
An exploitable denial-of-service vulnerability exists in Systemd 245. A
specially crafted DHCP FORCERENEW packet can cause a server running the
DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can
forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.
Bugs
- <https://github.com/systemd/systemd/issues/16774>
- <https://bugzilla.redhat.com/show_bug.cgi?id=1959398>
Notes
| Author | Note |
|---|---|
| mdeslaur | FORCERENEW was temporarily disabled until proper support for RFC6704 is in place |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | systemd | < 237-3ubuntu10.49 | UNKNOWN |
| ubuntu | 20.04 | noarch | systemd | < 245.4-4ubuntu3.10 | UNKNOWN |
| ubuntu | 20.10 | noarch | systemd | < 246.6-1ubuntu1.7 | UNKNOWN |
| ubuntu | 21.04 | noarch | systemd | < 247.3-3ubuntu3.4 | UNKNOWN |
| ubuntu | 21.10 | noarch | systemd | < 248.3-1ubuntu3 | UNKNOWN |
| ubuntu | 22.04 | noarch | systemd | < 248.3-1ubuntu3 | UNKNOWN |
| ubuntu | 22.10 | noarch | systemd | < 248.3-1ubuntu3 | UNKNOWN |
| ubuntu | 23.04 | noarch | systemd | < 248.3-1ubuntu3 | UNKNOWN |
| ubuntu | 23.10 | noarch | systemd | < 248.3-1ubuntu3 | UNKNOWN |
| ubuntu | 24.04 | noarch | systemd | < 248.3-1ubuntu3 | UNKNOWN |
References
launchpad.net/bugs/cve/CVE-2020-13529
nvd.nist.gov/vuln/detail/CVE-2020-13529
security-tracker.debian.org/tracker/CVE-2020-13529
talosintelligence.com/vulnerability_reports/TALOS-2020-1142
ubuntu.com/security/notices/USN-5013-1
ubuntu.com/security/notices/USN-5013-2
www.cve.org/CVERecord?id=CVE-2020-13529
Related
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:A/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS
Percentile
49.6%